Addition game for 7 to 9 year olds

Use doubles you already know to add numbers that sit side by side, like 24 + 25. No timer: stage 1 plays right here.

  • Ages 7–9
  • Free · no sign-up
  • Maths Arena 3D
Stage 1 · Maths Arena 3D

Near doubles

10 questions · no timer

About this stage

The trick

Double, then adjust by one

6 + 7 is double 6, plus 1. Or double 7, take 1.

8 + 9 → double 8 + 1 → 17

Questions like these

  • 9 + 10 = ?
  • 14 + 15 = ?
  • 6 + 7 = ?
  • 7 + 8 = ?

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